I have old machine and want my graphic card to use its ability (Nvidia PureVideo) to help playing hd videos. I installed vdpau library and vdpauinfo but mplayer cannot played video. I upgraded my nv driver to 256.44 but still no video, only error messages that i cannot understand.

Thx for help. I was looking for PCI Geforce8 but it seems it is not available in my country. And I think it is very expensive I have a plan. My computer is good for me, except hd videos, so I will buy a mediacenter to play films and it will be cheaper than a new machine